故障现象一辆行驶里程约为3.5万km的2011款尚酷车(搭载2.0T发动机),发动机故障灯异常点亮。故障诊断接车后,首先验证故障现象,仪表盘上的发动机故障灯的确异常点亮;连接VAS5053故障检测仪,读取发动机控制单元的故障存储,存储有故障代码P1297(04759),其故障含义是“涡轮增压器-节气门连接压力下降”。尝试清除故障代码,但故障代码无法清除。根据故障代码P1297分析,初步认为是进气系统存在漏气导致发动机空燃比不正常,造成发动机故障灯异常点亮。为了尽快确认进气系统的漏气点位置,汽车维修技术人员使用德国力 Fault phenomenon A mileage of about 35,000 km 2011 models cool car (equipped with 2.0T engine), the engine fault light abnormal lighting. Fault diagnosis After the car, the first verification of the phenomenon of failure, the engine fault light on the dashboard is indeed abnormal light; connect VAS5053 fault detector, read the engine control unit fault memory, fault code stored P1297 (04759), the meaning of the fault Is “Turbocharger - throttle connection pressure drop”. Try to clear the fault code, but the fault code can not be cleared. According to the analysis of the fault code P1297, it is preliminarily thought that there is air leakage in the air intake system and the engine air-fuel ratio is not normal, causing the engine malfunction light to turn on abnormally. In order to confirm the location of the air leakage point of the air intake system as soon as possible, the vehicle maintenance technician uses German force